Enum roe::LowercaseMode

pub enum LowercaseMode {
    Full,
    Ascii,
    Turkic,
    Lithuanian,
    Fold,
}

Options to configure the behavior of lowercase.

Which letters exactly are replaced, and by which other letters, depends on the given options.

See individual variants for a description of the available behaviors.

If you're not sure which mode to choose, LowercaseMode::Full is a a good default.

Variants

Full

Full Unicode case mapping, suitable for most languages.

See the Turkic and Lithuanian variants for exceptions.

Context-dependent case mapping as described in Table 3-14 of the Unicode standard is currently not supported.

Ascii

Only the ASCII region, i.e. the characters 'A'..='Z' and 'a'..='z', are affected.

This option cannot be combined with any other option.

Turkic

Full Unicode case mapping, adapted for Turkic languages (Turkish, Azerbaijani, …).

This means that upper case I is mapped to lower case dotless i, and so on.

Lithuanian

Currently, just full Unicode case mapping.

In the future, full Unicode case mapping adapted for Lithuanian (keeping the dot on the lower case i even if there is an accent on top).

Fold

Unicode case folding, which is more far-reaching than Unicode case mapping.

This option currently cannot be combined with any other option (i.e. there is currently no variant for turkic languages).

Trait Implementations

impl Clone for LowercaseMode

fn clone(&self) -> LowercaseMode

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for LowercaseMode

impl Debug for LowercaseMode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for LowercaseMode

fn default() -> Self

Returns the "default value" for a type.

impl Eq for LowercaseMode

impl FromStr for LowercaseMode

type Err = InvalidCaseMappingMode

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for LowercaseMode

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for LowercaseMode

fn cmp(&self, other: &LowercaseMode) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<LowercaseMode> for LowercaseMode

fn eq(&self, other: &LowercaseMode) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<LowercaseMode> for LowercaseMode

fn partial_cmp(&self, other: &LowercaseMode) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]pub fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]pub fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]pub fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]pub fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralEq for LowercaseMode

impl StructuralPartialEq for LowercaseMode

impl TryFrom<&'_ [u8]> for LowercaseMode

type Error = InvalidCaseMappingMode

The type returned in the event of a conversion error.

fn try_from(value: &[u8]) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&'_ str> for LowercaseMode

type Error = InvalidCaseMappingMode

The type returned in the event of a conversion error.

fn try_from(value: &str) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Option<&'_ [u8]>> for LowercaseMode

type Error = InvalidCaseMappingMode

The type returned in the event of a conversion error.

fn try_from(value: Option<&[u8]>) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Option<&'_ str>> for LowercaseMode

type Error = InvalidCaseMappingMode

The type returned in the event of a conversion error.

fn try_from(value: Option<&str>) -> Result<Self, Self::Error>

Performs the conversion.